Sand spreader



NOV. 10, 1936. Q A N D 2,060,652

SAND SPREADER Filed Nov. 27, 1934 2 Sheets-Sheet FIG. 1 M

1| Xfgfify 2:22

A \f i. ARNOLD ATTORNEY NW. 10, 1936. A. ARNOLD 2,060,652

. SAND SPREADER Filfld NOV. 27, 1934 2 Sheets-Sheet 2 FIG.5

v F [G 6 INVENTOR 01322? A. Aux w BY ATTORNEY Patented Nov. 10, 1936 UNITED STATES PA EN orslcs- 2,000,052 ssNn' srnssnnn Charles A. molt-West Haven, Conn. I Application November 27, 1934, Serial No. 155,021

This invention relates to new and useful improvements in road working equipment and has particular relation to a sand spreader.

An object of the invention is to provide a means whereby sand may be rapidly and evenlyv Another object isto provide an apparatus having the characteristics indicated and which comprises an automobile truck on which the 15, sand to be distributed is carried and on which is mounted the distributing apparatus, means being provided whereby the distributing appsratus is driven by the power plant which drives the truck and in desired timed relationship to go the speed of the truck and means being also provided whereby the sand may be distributed on either or both sides of a highway and on either or both shoulders of the highway or on one side and one shoulder of the highway. v 25 Other objects and advantages will become apparent from a consideration of the following detailed description taken in connection with the accompanying drawings wherein a satisfactory embodiment of the invention is shown.

30 However, it will be understood that the invention is not limited to the details disclosed but includes all such variations and modificationsas fall within the spirit of the invention and the scope of the appended claims.

35 In the drawings:

Fig. 1 is a front elevational view of an apparatus constructed in accordance with the present invention;

Fig. 2 is a side elevational view thereof, a part so of the truck frame being broken away;

Fig. 3 is a top plan view of the complete apparatus, the top of the truck cab" being omitted; Pig. 4 is a detail elevational view illustrating a drive employed, the view being taken substan- 45 tially along the line 4-4' of Fig. 3;

Pig. 5 is a detail sectional 'view on an enlarged scale showing the drive for the spreader wheels;

and a Fig. 6 is a view illustrating the power takego 01!.

Referring in detail to the drawings, at II is generally indicated a truckincluding a frame ii, front wheels I! and tear or driving wheels ii. on the frame ii is mounted a body I which as Claima' (Cl. z'zs-a) shown in the form of a hopper and forwardly of said body I4 is the cab II within which is the driver's seat It and the controls for the various parts are arranged for manipulation from the driver's seat. An engine (not shown) is as s usual'mounted by the frame ii and through a shaft I1 and any or the usual transmission (not shown) and differential (not shown) serves to drive the wheels ll of the truck. Any of the usual controls (not shown) may form part' of 10 the truck but since these controls are standard equipment and to avoid confusion they have not been illustrated.

In its bottom wall adjacent its sides the body M is provided with openings I8 and is which openings may be partially or completely closed as desired on proper manipulation or the slides or valves and II respectively. To each of the slides thereis connected a link 22 passing forwardly of the body I 4, at the. respective sides a of the cab l5, and at its forward end pivotally connected with a lever 23 intermediate the ends of the latter. The lower end of the lever 23 is pivotally connected as at N toa bracket 25 and it will be apparent that on swinging the lever 23 in. the manner suggested by the arrows in Fig. 2, the valve to which said lever is attached by the link 22 will be moved to close an opening in the bottom of body M. It will be understood that the link 22 and lever 23 combine to form a toggle whereby the valves 20 and II will be held in fully open or fully closed position when the levers are swung to their extreme position in either direction. I

Thevalves2Iand2i areadaptedtobeopen 35 when the valves 20 and 2| are opened sand pass- 4;

ing through the openings II and II will be picked up by the conveyors 2| and I1 and carried toward the front of the truck, if such conveyors are in operation.

Means are provided for driving the conveyors so 21 and 28 from the drive shaft ll of the truck and to this end a gear 30 is mounted on such drive shaft and is adapted to mesh with and drive a gear 31 on a shaft 32 when such gear II is shifted to operative position. Shifting of is Shaft 32 passes into a casing 31 and within 7 said casing carries a gear 38 meshing with and driving gears 39 and III on shafts 4i and 42 respectively. Gear I also meshes with and drives a gear 0 on a shaft 44. Shafts 4| and II project through the rear wall of the casing 31 and on their rear end portion these shafts carry sprocket wheels 45 and 46 over which are traind chains 41 and l8. These chains are also trained over sprockets 49 and II! respectively and such sprockets are on the ends of the shafts 50 and SI of the screw conveyors 28 and 21 respectively. By the means described it will be clear that on proper manipulation of the lever I3 the screw conveyors may be coupled or uncoupled with the drive shaft 11 so that said conveyors will be driven or not as required.

- Across the lower portion of the front of the truck there is arranged an apron 52 including a rear wall 53, a bottom wall H and end walls 55 and 56. In each end portion of the apron 52 there are arranged sand distributing wheels 51, i8, 59 and 60. While these wheels are arranged in pairs, each wheel is here given a separate number for the purpose of simplifying the description to follow. The wheels 51 and 59 are arranged lowermost and immediately above the bottom wall 54 of the apron and these wheels are secured to the lower end portion of similar shafts GI and 2. About such shafts are hollow or tubular shafts 63 and 64 to which are secured the wheels 58 and respectively.

It will be understood that the spreader wheels are thus mounted for rotation independent of one another and to the upper end of the shaft 6| there is secured a bevelled gear 65 while an oppositely facing bevelled gear 86 is secured to the upper end of the tubular shaft 3. Similarly, a bevelled gear 61 is secured to the upper end of shaft 62 and an oppositely facing bevelled gear N is secured to the upper end of the tubular shaft 64. On the forward end of the shaft ll of the scnew conveyor 28 there is a bevelled gear ll meshing with both of the bevelled gears I and '6. On the forward end of the shaft II of the screw conveyor 21 there is a bevelled gear 10 meshing with both of the bevelled gears '1 and 58.

Owing to the arrangement of the gears in the casing 31 the conveyors 21 and 28 are driven in opposite directions and owing to the gear arrangement between the forward ends of said conveyors and the distributing wheels it .will be understood that the wheels 51 and 59 are rotated in opposite directions and that the wheels I. and SI are rotated in opposite directions and that the wheels i1 and" are rotated in opposite directions as are the wheels 59 and II. When the valves or slides 2. and 2| are open and sand is being moved by the conveyors 21 and 2! the latter discharge onto chutes or slides 11 and 12 respectively and the latter discharge the sand close to the centers of the spreader wheels.

Associated with the wheel 51 is a gate 13 and a similar gate 14 is associated with the wheel 5!. These gates form movable extensions of curved baffles 15 and 18 respectively and the gate 13 is secured to a rotatable rod 11 while the gate 14 is secured to a similar rod". These rods 11 and 18 have hearings in brackets 19 and the rods are arranged vertically and the gates are secured to the lower end portions of the rods while to the upper end portion thereof there are secured worm wheels and ii respectively. Meshing with such worm wheels are worms 82 and 83 secured to the forward ends of shafts 84 and 85. Such shafts extend into the cab l5 and on the inner end of shaft 84 is a hand wheel 88 and a similar hand wheel 81 is secured to the innerend of shaft 85. On proper manipulation of the hand wheels 86 and 81 the vertical shafts or rods 11 and 18 will be turned to carry the gates 13 and 14 toward or from the distributing wheels with which such gates are associated.

In the operation of the apparatus, assuming that the body 14 is loaded with sand and that the truck H! has been driven to the place where the sand is to be distributed the operator manipulates either one or both of the levers 23 to open either or both of the valves 20 and 2! as desired. If both valves are open sand will pass into both of the compartments 26 and be available to both of the spiral conveyors. Next, lever 33 is shifted to place the gear 3! in mesh with the gear 30 and assuming that the vehicle is in motion this will result in the conveyors being driven and the conveyors will drive the distributing wheels 51 through 60 as above explained. Valves 20 and 2| being opened and gear 31 being in mesh with gear 30 all of the apparatus will be in operation and the sand fed to the wheels 51 through 60 will be distributed.

Assuming that the gates 13 and 14 are both open as shown in Fig.- l, a portion of the sand dropping from the chute 1| will be thrown toward the outer or left hand side of the road by the wheel 60 as viewed from the drivers position in the cab l5, and the remaining portion of the sand discharged by chute 1| will be thrown toward the center of the road by the wheel 58. A portion of the sand discharged by the chute 12 will be thrown toward the right of the road by the wheel 58 and the remaining portion of such sand will be thrown toward the center of the road by the wheel 51. From this it will be clear that when sand is being distributed by the four distributing wheels 51 through 60 a wide layer of sand is placed.

Should it be desired to cover only one half of the travelled portion of the road and one shoulder of the road, one of the valves 2O 01 2| will be closed so that the distributing wheels fed by the conveyor associated with such valve will not receive sand. For example, assuming that it is desired that the apparatus spread sand on the right hand portion of the road and on the right shoulder as the apparatus progresses along then it is but necessary to close the valve 21. When this has been none no sand will reach the conveyor 21 and consequently no sand will be distributed by the wheels I! and It. If the opposite portion of the road is to be sanded then the valve 20 would be closed and the valve 21 left open.

When it is desired to sand only the shoulders of a road, as when such shoulders have just been oiled the hand wheels 86 and 81 are operated to move the gates 13 and 14 to closed positions and when such gates are in closed positions they are related to the distributing wheels with which they are associated as the gate 14 in Fig. 3 is related to the wheels II and 80. when the gates are so closed the wheels l1 and" may not throw 2| is closed and the gate 13 is also closed. With the parts so positioned, sand will not be fed to the wheels 59 and I and the gate 13 will block, the sand thrown by the distnibuting wheel 51.

During the time the truck is being delivered to and from the place where the sand is to be distributed the valves II and 2! should both beclosed and the gear II should be out of mesh with the gear 30. When the point of distribution is reached, the control levers 23 may be conveniently operated and the control lever 33 is within the cab to be operated from the driver's seat and the hand wheels for controlling the gates are also so positioned that they may be operated from the driver's seat.

The present apparatus does not substantially increase the over all length of the truck and is compactly arranged and enclosed and does not require a separate power plant for its operation. The apparatus is capable of spreading sand evenly and over any desired path or a path of the desired width and the sand'is spread and distributed with a rapidity depending on the speed at which the truck is driven. This is true since the apparatus is driven from the drive shaft of the truck and at a speed dependent upon the speed of such shaft.

Since the sand is distributed ahead of the truck 7 the apparatus is useful for sanding icy roads since the sand as placed will serve to give traction to the driving wheels of the truck as they progress along. Further, the apparatus may be used to follow an oil distributing truck and cover the newly placed oil whether it be on either or both shoulders of the road or on either or both sides of the travel portion of the road or on both of the shoulders and both sides of the travelled portion" of the road. As the truck is brought to a stop from time to time the apparatus is stopped as the truck stops or its clutch is disconnected. or as the lever 33 is shiftedto move gear 3| ,from gear 30.

While the word "sand is repeatedly used in the foregoing description and the following claims to describe the material acted on by the present apparatus, it will be understood that this is by way of example or illustration. 7 Obviously, the apparatus may be used to spread other materials as gravel, crushed rock, salt, etc. and it is therefore to be understood that I do not limit myself to the use of the apparatus for the spreading of any Particular material and that the word "sand is used only as one example of the material which may be spread by the present apparatus. Therefore, I claim the apparatus for the spreading of material irrespective of any particular material and intend that the word "sand as used in the specification and claims cover other materiallikely to be spread by the disclosed apparatus.

Having thus set forth the nature of my invention, what I claim is:

1. In a sand spreader, an automobile truck including a body to receive and carry sand, a pair of conveyors on and arranged one at each side of the truck, valve means controlling passage of sand from the body to the conveyors, means for driving said conveyors from a moving part of the truck, substantially horizontally arrangedsand spreading wheels at the forward end of the truck, said wheels spaced apart and each arranged to receive sand from one of the conveyors, and

tlons. 2. In a sand spreader, an autonmbile truck including a body to receive and carry sand, a conveyor supported on' the truck and extending longitudinally thereof and adapted to receive sand from said body, means for driving said conveyor from a moving part of the truck, a sand spread-' 'ing means at the forward end of the truck and arranged to receive sand fromsaid conveyor, said means including blades to strike the sand and throw it outwardly, a vertical shaft mounting said blades, and means for rotating said shaft whereby as said blades strike the sand they throwit both forwardly of the truck and laterally of its path of travel.

3. In a sand spreader, an automobile truck including a body to receive and carry sand, a conveyor supported on the truck and extending longitudinally thereof and adapted to receive sand from said body, manually shiftable means for establishing a driving connection between the conveyor and a moving part of the truck, a sand spreading wheel at theforward end of the truck and arranged to receive sand from the conveyor, a vertically disposed shaft mounting said wheel, and means for driving said'shaft whereby as said wheel is rotated it spreads sand both forwardly of the truck and laterally of its path of travel.

4. In a sand spreader, an automobile truck including a body to receive and carry sand, a conveyor supported on the truck and extending longitudinally thereof and adapted to receive sand from said body, manually shiftable means for establishing a driving connection between the conveyor and a moving part of the truck, a sand spreading wheel at the forward end of the truck and arranged to receive sand from the conveyor, and a driving connection between the conveyor and wheel whereby the .latter is rotated by the former while the former is in operation.

5. In a sand spreader, an auomobile truck including a body to receive and carry sand, a conveyor supported on the truck and extending ionmeans-for driving said wheels in opposite direcgitudinally thereof and adapted to receive sand 6. In a sand spreader, an automobile truck in-.

cluding a cab and a body to receive and carry sand, a conveyor supported on the truck and extending longitudinally thereof and adapted to receive sand from said body, a horizontally slidabie valve-controlling passage of sandfrom the body to the conveyor, a reciprocable rod operable from the truck cab to slide said valve to and from a position preventing passage of sand from the body to the conveyor, means for driving saidconveyor from a moving part of the truck, a sand spreading wheel at the forward end of the truck and arranged to receive sand from said conveyor, and means for rotating said wheel.

' 7. In a sand spreadenan automobile truclr including a body to receive and carry sand, a conveyor supported on the truck and extending ioning wheel at the forward end of the truck and.

arranged to receive sand from said conveyor, and means for rotating said wheel from the conveyor.

8. In a sand spreader, an automobile truck including a body to receive and carry sand, a pair of conveyors supported on and extending longitudinally of and arranged one at each side of the truck to receive sand from said body, valve means controlling passage of sand from the body to the conveyors, means ior driving said conveyors from a moving part of the truck, two pairs of substantially horizontal spreading wheels at one end or the truck and arranged one pair toward each side or the truck to receive sand from the respective conveyors, and means to drive the wheels of the pairs in opposite directions.

9. In a sand spreader, an automobile truck including a body to receive and carry sand, a pair of conveyors supported on and extending longitudinally of and arranged one at each side of the truck to receive sand from said body, valve means controlling passage or sand from the body to the conveyors, means for driving said conveyors from a moving part of the truck, two pairs of substantially horizontal spreading wheels at one end of the truck and arranged one pair toward each side of the truck to receive sand from the respective conveyors, and means to drive the wheels of the 1 pairs in opposite directions from a moving part of the truck.

10. In a sand spreader, an automobile truck including a body to receive and carry sand, a pair of conveyors supported on and extending longitudinally oil and arranged one at each side of the truck to receive sand from said body, independent valves controlling the'passage of sand from the truck body to the respective conveyors, means for driving said conveyors from a moving part of the truck, two pairs of spreading wheels at one end of the truck and arranged one pair towardeach side of the truck to receive sand from the respec-- tive conveyors, and means to drive the wheels of the pairs in opposite directions.

11. In a sand spreader, an automobile truck including a body to receive and carry sand, a-

pair of conveyors supported on and extending longitudinally of and arranged one at each side 'of the truck to receive sand from'said body, valve means controlling passage of sand from the body to the conveyors, means for driving said conveyors from a moving part of the truck, two pairs of substantially horizontal spreading wheels at one end of the truck and arranged one pair toward each side of the truck to receive sand from the respective conveyors, means to drive the wheels of the pairs in opposite directions, and said means including driving connections between the wheels and conveyors at the same sides of the trucks.

12. In a sand spreader, an automobile truck including a body to receive and carry sand, a pair of conveyors supported on and extending longitudinally of and arranged one at each side of the truck to receive sand from said body, valve means controlling passage of sand from the body to the conveyors, means for driving said conveyors in opposite directions from a moving partof the truck, two pairs of substantially horizontal spreading wheels at one end of the truck and arranged one pair toward each side of the truck to receive sand from the respective conveyors, means to drive the wheels of the pairs in opposite directions, and said 'means including driving connections between the wheels and conveyors at the same sides of the truck.

13. In a sand spreader, an automobile truck including a body to receive and carry sand, a pair of conveyors supported on and extending longitudinally of and arranged one at each side of the truck to receive sand from said body, valve means controlling passage 01 sand from the body to the conveyors, means for driving said conveyors from a moving part of the truck, two pairs of substantially horizontal spreading wheels at one end of the truck and arranged one pair toward each side of the truck to receive sand from the respective conveyors, means to drive the wheels of the pairs in opposite directions, a movable gate associated with each of said pairs of wheels, and means for moving said gates to and from positions blocking the throw of sand by one wheel of each of said pairs of wheels.

14.In a sand spreader, an automobile truck including a body to'receive and carry sand, 8. pair of conveyors supported on and extending longitudinally of and arranged one at each side 'of the truck to receive sand from said body, valve able gate associated with each of said pairs of wheels, and means operable from the truck cab for moving said gates to and from positions blocking the throw of sand by one wheel or each or said pairs of wheels.

15. In a sand spreader, an automobile truck including a body to receive and carry sand, a pair of conveyors supported on and extending longitudinally of and arranged one at each side the truck to receive sand from said body, valve means controlling passage of sand from the body to the conveyors, means for driving said conveyors from a moving part of the truck, two pairs of substantially horizontal spreading wheels at one end of the truck and arranged one pair toward each side of the truck to receive sand from the respective conveyors, means to drive the wheels of thepairsin opposite directions, a movable gate, I

associated with .each of said pairs of wheels, and means for independently moving said gates to and from positions blocking the throw of sand by one wheel of each of said pairs of wheels.

16. In a sand spreader, an automobile truck including a body to receive and carry sand, 9. pair of conveyors supported on and extending longitudinally of and arranged one at each side of the truck to receive sand from said body, valve means controlling passage of sand from the body to the conveyors, means for driving said conveyors from a moving part of the truck, two pairs of substantially horizontal spreading wheels at one end of the truck and arranged one pair toward each sideof the truck to receive sand from the respective conveyors, means to drive the wheels of the pairs in opposite directions, a movable gate associated with each of said pairs of wheels, and means operable from the truck cab for independently moving said gates to and from positions blocking the throw of sand by one wheel 0! each of said pairs of wheels.

17. In a sand spreader, an automobile truck. a pair of substantially horizontal spreading wheels at one end or the truck and arranged one toward each side thereof, means for feeding sand to said wheels, and means for rotating said wheels in opposite directions tothrow sand laterally of the path of movement of the truck.

18. In a sand spreader, an automobile truck, a pair of substantially horizontal spreading wheels at one end of the truck and arranged one toward each side thereof, means for feeding sand to said wheels, means for rotating said wheels in opposite directions to throw sand laterally of the path of movement of the truck, and means movable to and from a position preventing sand from one wheel moving toward the other wheel.

19. In a sand spreader, a wheeled vehicle, two pairs of spreading wheels at one end of the ve-- hicle and arranged one pair toward each side thereof, means for supplying sand to said wheels, and means to drive the wheels of the pairs in opposite directions. 7

20. In a sand spreader, an automobile truck, two pairs of spreading wheels at one end of the truck and arranged one pair toward each side thereof, a pair of conveyors arranged each to deliver sand to one pair of said wheels, means for driving said conveyors irom a moving part of the truck, means to drive the wheels of said pairs in opposite directions, and said last means including driving connections between the wheels and the conveyors.

21. In a sand spreader, an automobile; truck, two pairs of spreading wheels at one end of the truck'and arranged one pair toward each side thereof, a pair of screw conveyors arranged each to deliver sand to one pair 01 said wheels, means for rotating said conveyors in opposite directions from a moving part of the truck, means to drive the wheels of said pairs in opposite directions, and said last means including driving connections between the wheels and the conveyors.

22. In a sand spreader, a wheeled vehicle, two pairs of spreading wheels at one end of the vehicle and arranged one pair toward each side thereof, means for supplying sand to said wheels,

means to drive the wheels of the pairs in opposite directions, a movable gate associated with one of said pairs of wheels, and means for moving said gate to and from a position blocking the throw of sand by one wheel of said pair of wheels.

23. In a sand spreader, a wheeled vehicle, two pairs oi spreading wheels at one end of the vehicle and arranged one pair toward each side thereof, means for supplying sand to said wheels, means to drive the wheels of the pairs in opposite directions, a movable gate associated witheach of the pairs of wheels, and means for indopendentl'y moving said gates to and from positions blocking the throw of sand by one wheel of each of said pairs of wheels.

24. In a sand spreader, a wheeled vehicle, two pairs of spreading wheels at one end of the vehicle and arranged one pair toward each side thereof, means for supplying sand to said wheels, means to drive the wheels .of the pairs in opposite directions, and means whereby the feeding of sand to one of said pairs of wheels may be prevented without interfering with the feeding to and the spreading of sand by the other pair of wheels.

25. In a sand spreader, an automobile truck, a

pair of spreading wheels at one end of the truck and arranged one toward each side thereof. independent conveyors for feeding sand to the respective wheels, means for rotating said wheels to throw sand laterally oi'the path of movement of the truck, and means to discontinue the feed of sand by one of said conveyors without interfering with the feed of sand by the other conveyor whereby sand will be thrown by only one .of said wheels.

26. In a sand spreade a wheeled vehicle, two pairs of spreading wheels at one end of the vehicle and arranged one pair toward each side thereof, independent means for supplying sand to the respective pairs of wheels, means to drive the wheels of the pairs in opposite directions, and means to discontinue the feed of sand by one of said feed means withoutinterfering with the operation of the other thereof whereby sand will be thrown by only one pair of said wheels.

27. In a sand spreader, a wheeled vehicle including a drivers seat, a pair of concentric spreading wheels at one end of the vehicle,-means tating said wheels in oppositedirections, a gate movable to and from a position to block sand thrown by one of said wheels, and means operable from the driver's seat for moving said gate.

28. In a sand spreader, an automobile truck including a cab and a body to receive and carry sand, a conveyor supported on the truck and extending longitudinally thereof and adapted to 'for supplying sand to said wheels, means for roreceive sand from said body, a slidable valve controlling passage of sand from the body to the conveyor, a horizontally reciprocable rod operable from the truck cab to slide said valve to and from a position preventing passage of sand from wheel.

GHARLES A. ARNOLD. 

